What should I do if the idle speed is unstable after cleaning the throttle?

After cleaning the throttle, the most direct manifestation of not re-matching is that the idle speed will be high and the idle speed will automatically increase. Some engines will increase the speed to 1500 r/min or even higher, with high fuel consumption and excessive emissions. The exhaust pipe will emit black smoke when accelerating.

After cleaning the throttle valve, the engines of the United States and Japan do not need to be matched again, and only need to 1rain to disconnect the negative electrode of the battery, so that the control unit loses its remaining memory and can return to normal.

For Fiat cars, turn the ignition switch to the 0N position, stay at 1 10s, turn off the ignition switch, turn it on again, and start the engine, thus completing the adaptation of the throttle position sensor.

Start the engine 12 times or more, don't start it every time, turn it off immediately after starting, and you can also complete the setting of Jetta throttle position sensor.

Once the electronic throttle is seriously polluted by dust, it will lead to unstable idle speed of the engine, excessive exhaust emissions, and even idling and flameout in serious cases, but it will be very stable when driving at medium and high speeds.

If a potentiometer in the electronic throttle system fails to exit, the system will automatically turn into an emergency operation state with a maximum speed limit of120km/h/h.

Electronic throttle initialization of Citroen Elysee. Turn the ignition switch to the M position for 30 seconds, and do not step on the accelerator pedal during this time. Turn off the ignition switch 15s, and pull out the key to complete the electronic throttle setting.

Mazda 6 electronic throttle reset. Disconnect the negative electrode of the battery for 5s, and then reassemble it. Turn the ignition switch to the 0N position, press the accelerator pedal for 5 seconds, and then release it. Turn off the ignition switch, then restart it, and check whether the engine speed can drop normally after releasing the accelerator pedal, that is, complete the electronic accelerator setting.